Burner



Jan. 30,

. E. WITZBERGER.

BURNER.

FILED M'AY 9.1921.

ATTORNEY Patented Jan. 3%, 1923.

stares raiser ETIENNE wrrzisEnema, or CARNEGIE, rEN-N sYLvAN n.

I BURNER.

Application filed May 9,

To all 207mm 2'25 may concern:

Be it known that l, ETIENNE VVITZBERGER, a citizen of the United States,residing at Carnegie, in the county of Allegheny and State ofPennsylvania, have invented new and useful Improvements in Burners, ofwhich the following is a specification.

This invention relates to burners, and more particularly to a burner foruse in gas stoves and for similar purposes. 7

One of the main objects of the invention is to provide a burner of thecharacter stated of very simple construction and which may be readilyproduced at small cost and is capable. of producing a very in tenseheat. Another object is to provide a burner which may be used inconnection with the ordinary valve or jet commonly used on gas stoveswithout necessitating any changes in the construction of the valve orthe stove. Further objects will appear from the detailed description.

In the drawings Figure l is a top plan View of a burner constructed inaccordance with my invention;

Figure 2 is a section taken substantially on line 2 -2 of Figure 1showing a jet or valve of a known type for supplylng gas to the burner;

Figure 3 is a transverse section taken substantially on line 3 3 ofFigure 2.

Figure 4: is a section taken on line 44 of Figure 2.

The burner includes a body 1 of rectangular cross-section which isformed of sheet metal, and a relatively narrow top plate 2 connected atits lateral edges by inclined plates 3 to the upper edges of the sidesof body 1. The body is closed at one end by an end plate t and isprovided at its other end with an end plate 5 through'which is securedthe outer end of an inwardly flaring gas receiving and mixing tube 6which is also formed of sheet metal and extends to within a shortdistance of end plate 4. Top plate 5 is provided with spaced series ofperforations 7 each series of perforations forming a rectangle; thoughthe entire top plate may be provided with uniformly spaced perforations,if so desired, or the perforations may be arranged in any other suitableor preferred manner.

The burner thus constructed may be supported between walls A and B of astove structure in any preferred manner. In the,

1921. SerialNo. 468,036.

form illustrated, end plate 4-: of the burner is secured by a stove bolt8 and a nut 9 to wall B. The other end of the burner is supported by asubstantially U-shaped castlng or bracket 10 which is secured to wall A,i the end portion of the'burner fitting into this bracket. An opening 11is provided through wall-A of'the stove structure and a suitable gasvalveor jet 12 is 'positionedto dlscharge through this opening into thenarrower end of tube 6, a space 13 of substantially three-eightlis of aninch being leftbetween the discharge end of jet '12 and open} ing' ll,"though this space may be varied, as desired, as will be understood. Thejet of gas discharged into tube 6 induces air into the tube, the gas andthe air expanding as they flow inwardly of the tube thus increasing thevelocity of flow of the mixture and obtaining thorough and intimatemixing of the gas and air. This mixture is discharged fromthe inner endof tube 6 and flows upwardly into the upper portion of the burner, beingdirected toward top plate 2 from each side by the inclined plates 3. Themixture of gas-and air escapes through openings where it is ignited inthe usual way. By providing the tube 6 in conjunction with the burner Iam enabled to mix a relatively great quantity of air with the gas thusinsuring complete combustion while producing intense heat and effectinga material saving in gasconsumed; have found by repeated experimentsthat it is possible to produce a much more intense heat for a givenquantity of gas consumed with this burner than with the ordinary typeofburner commonly used in gas stoves of known type. In addition, theburner does not become heated to such anextent as to tend to warp ortwist, and it is therefore possible to make the burner out of sheet'metal thus producing a burner of very small cost and of much lessweight than a cast burner.

As clearly illustrated in Figures 2 and 3 of the drawings, the body orcasing 1 is of substantially uniform cross-area and the inwardly flaringtube 6 co-operates with the walls of the body to provide a space whichthrough the perforations of top plate 2 for the full length thereof thusproducing a burner of very simple construction and low cost which iswell adapted for use in heatin stoves of the radiant t pe or for otherpurposes.

l Vhat I claim is lrln a burner, an elongated hollow body provided withperforations through its top wall and a fuel receivingand mixing tubeextending into said body from one end thereof to within a short distanceof the other end of the body, the tube and the body being so constructedand related as to-provide a space between the tube and the walls of thebody, which increases in cross-area toward the inlet end, of the tube,the increase in cross-area of said space facilitating flow of. gaseswithin the casing from the discharge end of the tube toward the inletend thereof so as to obtain uniform discharge of the gases throughtheperforations of said top wall.

p 2. In a burner, an elongated hollow body of uniform cross-area, and aninwardly flaring fuel receiving-and mixing tube extending into said bodyfrom one end thereof to within a short distance of the other end of saidbody.

8. In a burner, an elongated hollow body of uniform cross-sectionincluding a relatively narrow perforated top plate and upwardly andinwardly inclined plates connecting the lateraledges of said top plateto the sides of the body, and an inwardly flaring fuel receiving andmixing tube extending into the body from one end thereof to within ashort distance of the other end of the body.

In testimony whereof I afiix my signature.

ETIENNE lVITZBERGER.

